I've switched to xfce from gnome3. Mainly to experiment. I find the super key effect on gnome shell really useful. Both the showing all windows and the application finder are convenient. Is there a way to achieve this on xfce? (xubuntu 12.10).

No. XFCE does not have those kind of effects. For the Show all Windows effect, you can either use Compiz and use the Exposé-like effect or use Gala for the same purpose and replace XFWM4. The Application overview is unique to Gnome Shell only, you may use Synapse if you don't want to dig through the Menus.
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Uri HerreraDec 9 '12 at 9:08

Thanks. I forgot to mention that I have gala install. Where can I configure it?
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YotamDec 9 '12 at 9:37